Functions & closuresReference

isnewcclosure

Identifies wrappers created by the module.

Details#

Checks whether a function is one of the module's newcclosure wrappers. An arbitrary C closure is not necessarily such a wrapper.

isnewcclosure(target: function): boolean

Parameter	Type	Description
`target`	`function`	The exact function value to inspect or modify.

A boolean result; non-function arguments raise a type error.

local f = newcclosure(function() return 1 end)
print(isnewcclosure(f)) -- true